200537863 九、發明說明： 【發明所屬之技術頜域】 本發明係關於無線通訊’更詳細而言係關於與行動 終端機進行無線通訊所用之分封交換及電路交換。 【先前技術】 第一個全球行動系統(GSM)通訊網路係設計應用於 聲音服務而非數據服務。在開始使用GSM數據服務時’ 很快便發現電路交換(cs)支架服務並不適用於特定類型 之猝發性應用。因此新式分封交換(ps)數據傳輸服務 GPRS(通用分封無線電服務）係被開發以無分封服務。 GPRS係一種利用GSM網路之分封無線電網路，而GPRS 係利用行動台（以下稱為行動終端機)與GPRS網路之間 之空氣介面上之GPRS協定層以使數據分封傳輸最適 化0200537863 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to wireless communication ', and more specifically, to packet switching and circuit switching for wireless communication with mobile terminals. [Previous Technology] The first Global System for Mobile Communications (GSM) communication network was designed for voice services rather than data services. When I started using GSM data services, I quickly discovered that circuit-switched (cs) cradle services were not suitable for certain types of bursty applications. Therefore, a new type of packet switching (ps) data transmission service GPRS (General Packet Radio Service) was developed with no packet service. GPRS is a packetized radio network using the GSM network, and GPRS uses the GPRS protocol layer on the air interface between the mobile station (hereinafter referred to as a mobile terminal) and the GPRS network to optimize data packet transmission.
如3GPP TS23.060，”服務說明第2階段，，第5.4.5節 所揭述，GPRS行動台（MS)可以三種操作模式之一操 鲁 作。4二種模式係A-級模式，B-級模式，及C-級模式。 根據A-級模式’ MS係附接於GPRS及其他GSM服矛务， 因此A-級模式係對應於雙傳輸模式(DTM)(以下亦稱為 雙模式）。八-級模式之行動用戶可同時在二項服務上撥電 及/或接電，例如在使用正常GSM聲音通話之同時亦可 接收GPRS數據分封。根據心級操作模式，Μ§係附接 於GPRS及其他GSM服務，但Ms僅可一次操作一組服 務。根據級操作模式，MS僅附接於GSM網路或GpRS 200537863 網路；選擇係以手動方式完成，而且無法同時操作。 根據現有標準(3GPP TS44.018，π無線電資源控制協 定π) ’當MS係在分封傳輸模式下而有需要cs連接（亦As described in 3GPP TS23.060, "Service Description Phase 2, Section 5.4.5, the GPRS mobile station (MS) can operate in one of three operating modes. 4 The two modes are A-level modes, B -Class mode, and C-class mode. According to the A-class mode, MS is attached to GPRS and other GSM services, so the A-class mode corresponds to the dual transmission mode (DTM) (hereinafter also referred to as dual mode) ). Eight-level mobile users can dial and / or receive power on two services at the same time. For example, they can receive GPRS data packets while using normal GSM voice calls. According to the heart-level operation mode, M§ is attached Connected to GPRS and other GSM services, but Ms can only operate one group of services at a time. According to the level operation mode, MS is only attached to the GSM network or GpRS 200537863 network; the selection is done manually and cannot be operated simultaneously. Existing standard (3GPP TS44.018, π Radio Resource Control Protocol π) 'When MS is in the packet transmission mode, a cs connection is required (also
稱為無線電資源或RR連接）時，首先必須放棄所有分封 資源，再達成RR連接，最後可要求分封資源。此項程 序係發生於諸如MS啟動通話時。此項先行技術系統係 示於第1圖（亦見述於3GPPTS43.064，"GPRS無線電介 面之整體說明，第2階段），顯示介於1級(〇丁乂支援) 與B-級之間之RR操作模式及轉換。暫時區塊流(TBF) ，放將使MS從分封傳輸模式1〇6移至閒置/分封閒置狀 態104,然後MS必須達成指sRR連接1〇8藉以存取包 括有分封傳輸性能及RR性能之雙傳輸模式1〇2。換古 之，在釋放分封傳輸連接106之後，在分封閒置模式^ =MS必須完全擷取系統資訊及再度要求所有資源， 藉以通過指定CS模式ι〇δ而進入雙模式1〇2。、 第2圖進-步說明現有系統如何根據先行技術操 。圖中四條直線代表網路之部份或階段。逝線代 ㈣台（MS)，204、線代表基台系統(BSS)，施線 伺服GPRS支援節點(SGSN)，而細線代表行動交換中 ^(MSC)該MS或網路可要求cs連接。不管在任何 5，分封節210係被棄用而啟動達成cs連接 圖中’網路㈣MS以進行CS連接。M f =輸至分封閒置模式214’在該模式中 貢源，如3GPPTS44.018，”無線電資源控㈣定要。 200537863 當MS漸進於指定模式212時，如果需要ps資源，ms 必須通過呈交雙傳輸模式(DTM)要求以要求ps資源，如 3GPP TS43.064 ’ "GPRS無線電介面之整體說明”，第2 階段所揭述者。 此種先行技術之主要問題在於不被允許立即進 入組合之CS模式212與PS模式216(連同具有雙模式) 直至MS已進行數種耗時性步驟。因此，行動台將在設 立電路交換會談212之同時被迫閒置其分封交換性能。 【發明内容】 本發明簡化轉換程序及使其更直接，藉此加強分封 傳輸模式變成雙傳輸模式之轉換。解決方案係採用利用 無線電連結控制或分封相關控制頻道(pACCH)之多，向存 取控制（RLC/MAC)信息以產生雙傳輸模式(DTM)作業 指令，而不需使分封資源閒置。在此程序期間，行動台 (MS)將保持分封轉換(PS)資源，於是MS可取得較佳之 分封應用服務品質。RLC/MAC信息使用PACCH以從網 路要求DTM作業，或從網路傳達DTM作業而不需任何 請求。 在分封傳輸模式中，MS或網路可啟動CS連接。在 後者之場合（即MS-終結場合），網路可使用"DTM作業指 令’’或’’立即指令’’信息立刻提供CS資源。由於不需傳送，， 分封傳呼請求”或”分封CS請求”信息，MS可比在不包 括該信息時更快取得CS資源。 【實施方式】 200537863 弟3圖顯示本發明之一實施例在與⑽·啟始場合比 較，：之，終結場合。然而3圖僅適用於MS_啟 始场^巾亚不使用網路傳呼以啟動轉換成雙模式。 =:圖之CS連接212，並存取雙傳輸模式之一 種有效方式係使用新#息而非放棄或閒置214第2圖所 不之分封傳輸模式。於是，MS將傳送新rlc/mac控 制信息，例如”分封CS請求”310等於分封連接控制頻道 (PACCH)，藉以啟始CS連接或答覆如第3圖所示之來 自網路之傳呼信息。 MS經過最高]^+1次嘗試以傳送”分封（：^請求，，信 息310於PACCH上。除了最高數目之傳輸外，ms亦將 分散傳送此請求信息。分散因子係基於bs_cvjviax參 數。分散因子可能係例如BS_cv_MAX+x無線電區 塊’其中X係另一新參數。 在M+1嘗試傳送”分封cs請求"信息310後，MS 將開始一新RLC/MAC計時器350(Tx)。當計時器Tx截 φ 止時，雙模式存取程序將停止，如先行技術般釋出分封 資源，如3GPP TS44.018，，，無線電資源控制協定”所指 定，行動台將在RACH上傳送”頻道請求”信息以隨機存 取。 有可能MS可使用現存MAX再傳輸及Τ3126(目前 當傳送Μ+1請求時連同”頻道請求”信息211使用者)參 數’如3GPPTS44.018，，，無線電資源控制協定”所指定， 或可指定新的參數。 200537863 在第3圖所示之MS-終結場合，通過”分封CS請求 "(PACCH) 310傳送之新RLC/MAC控制信息可定義如 下： <Packet CS Request>::= {0<GLOBAL^TFI:<Global TFI ΙΕ» I KTLLI ： <TLLI IE»} <CS—CHANNEL_REQUEST_DESCRIPTION: <CS Channel Request Description IE> <padding bits> ； f’CS頻道請求說明IE”係指定於3GPP TS44.018，” 無線電負源控制協定’’第9 · 1 · 8分項。 網路可利用現存無線電資源管理信息以答覆MS。 該信息係被包覆於一或多個新RLC/MAC控制信息中。 舉例而言，”分封CS指令”可包覆所有RR信息。另一 種方式係為網路之每一項答覆添加新RLC/MAC信息。 網路可配置PS及CS資源，或不配置PS資源，或 不配置CS資源。以上三種替代情形將予各自表述。所 有三種情形均可能發生於MS-啟始或MS-終結場合。 如果網路可配置PS及CS資源，則將傳送”DTM作 業指令’’信息215。當MS接收到此項信息時，它將啟始 cs連接及最終進入雙傳輸模式。須知”DTM作業指令，， 信息215很大，尤其條件式頻率列表參數之大小（其長度 為4-132個八位元組），而有可能此頻率列表參數之大小 係受限制者。 200537863 然而，如果網路無法配置Ps資源，則將傳送，，立即 作業”信息213。當MS接收到此信息時將解開ps連鈇 及開始達成CS連接。在CS指定模式中，MS可利用^ 行技術之步驟以要求PS資源。 另一方面，如果網路無法配置cs資源，則將傳送，， 立即作業否决彳5息。當MS接收到此信息時，它將持續 正常之分封傳輸模式。 、’ 如第4圖所示，為了進一步加強MS_終結場合，如 果網路可配置PS及CS資源(於此場合，MS不需傳送，， 分封CS請求π信息310)，網路將直接傳送”DTM作業指 令”信息215而非傳送”分封傳呼請求，，信息3〇5。如果cs 及ps資源均無法予以設定，可傳送，，立即作業，，213。 在”DTM作業指令”215及”立即作業”信息213中， 需要一新參數以顯示該信息係因傳呼而傳送。此外，在 MS無線電存取性能資訊元素(IE)中需要顯示ms支援此 項特徵。 在PACCH上進行信息傳輸有至少兩種可能性。首 先，可使用單一 RLC/MAC信息以包覆所有已經說明在 其中之RR信息。此項可能性方法之好處在於僅需一 RLC/MAC信息定義，使本發明更簡化，而且僅使用一 種RLC/MAC信息類型代碼點。此項第一方案係與 PACCH上之SI信息併用，用以指定3GPP第4版中所 引用之網路辅助細胞變化程序。根據第一可能性之信息 可被稱為”分封CS指令”。第二項可能性係使用個別之 10 200537863 RXC/MAC信息。第二方案之要點並不比第一方案顯 要。在此二項實施例中，均需要在GPRS細胞選項資訊 元素(IE)中指示網路支援此RLC/MAC信息特徵。 如第3圖及第4圖中所示，第2圖所示之先行技術 之各項特徵將不需要，尤其不需要閒置/分封閒置214。 因此本發明可免除PS會談210之中斷干擾。 參知、第5圖之流程表，顯示本發明之最佳模式實施 _ 例之方法。此項方法係提供行動終端機轉換成雙傳輸模 ^，其中係從傳輸分封之分封傳輸模式中一起併用分封 父換連接及電路父換連接。在步驟中，行動終端機 係接收來自網路之一傳呼信號。如果傳輸係由行動終端 機而非網路所啟始，則不需要此項步驟5〇2。在任何情 況下，下一步驟504係利用PACCH將RLC/MAC信息 網路。在此實施例中，係經過多資嘗試以傳達此 ，信息，並在此程序中係維持處理分封交換資源而非如 ί行技術中予以棄用或閒置。經過多次傳輸嘗試後，在 鲁仃，終端機啟動一計時器5〇6。當計時截止時係接收或 I，收雙傳輸模式作業信息（例如雙向傳輸模式作業指 二捕若有接收到’則不需閒置分封資源而可存取510 二拉式。然而’如果計時器截止時並未收到DTM ::a令，則回返先行技術之方法：解放分封資源， σ取，路父換資源514，然後存取516DTM。 第6圖顯示本發明之一實施例之行動終端機6〇2， 以在無線通訊系統中轉換成雙模式，其中係從傳輸分 11 200537863 封之單核式巾-起併时封交換連接及電路交換連接。 此行動終端，包括一收發器6〇4，用以傳送一傳呼信號 606至處理單το以顯示網路需要行動終端機轉換成雙模 式。行動終端機602亦包括一處理單元61〇，可回應傳 呼信號606以通過PACCH提供RLC/MAC信息622。在 所有情形下’分封交換(ps)資源649係非中斷者。處理 單元610在回應信號622時，係接收dtm作業指令612 以供達至使用電路交換連接618連同分封交換連接 649。處理單π 610包括有一計時器，如果在計時器截止(Referred to as radio resources or RR connections), you must first abandon all the decapsulated resources, then reach an RR connection, and finally you can request the decapsulated resources. This procedure occurs when, for example, the MS initiates a call. This advanced technology system is shown in Figure 1 (also described in 3GPP TS 43.064, "Overall description of the GPRS radio interface, Phase 2), showing a level between Level 1 (supported by 丁丁) and Level B- RR operation mode and conversion. Temporary Block Flow (TBF), the release will cause the MS to move from the packet transmission mode 106 to the idle / packet idle state 104, and then the MS must achieve the sRR connection 108 to access including the packet transmission performance and RR performance. Dual transmission mode 102. In other words, after releasing the packet transmission connection 106, in the packet idle mode ^, the MS must completely retrieve the system information and request all resources again to enter the dual mode 102 by specifying the CS mode ιδ. Figure 2 further illustrates how the existing system operates according to prior technology. The four straight lines in the figure represent parts or phases of the network. Lost line generation station (MS), 204, line represents base station system (BSS), service line GPRS support node (SGSN), and thin line represents mobile switching ^ (MSC) The MS or network may require cs connection. Regardless of any 5, sub-block 210 is deprecated and started to achieve cs connection. In the picture, the network ㈣MS is used for CS connection. M f = input to the packet idle mode 214 '. In this mode, such as 3GPPTS44.018, "radio resource control is determined. 200537863" When the MS progresses to the specified mode 212, if ps resources are required, ms must be submitted by The dual transmission mode (DTM) requires the ps resources, such as 3GPP TS43.064 "" Overall description of GPRS radio interface", as disclosed in the second phase. The main problem with this prior art technique is that it is not allowed to immediately enter the combined CS mode 212 and PS mode 216 (together with dual mode) until the MS has performed several time-consuming steps. Therefore, the mobile station will be forced to idle its packet-switching performance while setting up the circuit-switched talks 212. [Summary of the Invention] The present invention simplifies the conversion procedure and makes it more direct, thereby enhancing the conversion of the packetized transmission mode to the dual transmission mode. The solution is to use as many radio link control or packet related control channels (pACCH) as possible to access control (RLC / MAC) information to generate a dual transmission mode (DTM) operation instruction without leaving the packaging resources idle. During this process, the mobile station (MS) will maintain the packet switching (PS) resources, so the MS can achieve better quality of service for the packet application. RLC / MAC information uses PACCH to request DTM operations from the network or to communicate DTM operations from the network without any request. In packet transmission mode, the MS or network can initiate a CS connection. In the latter case (ie, MS-termination occasion), the network can use the " DTM operation instruction ' or '' immediate instruction ' information to provide CS resources immediately. Since there is no need to transmit, the packetized paging request or packetized CS request information can be obtained by the MS faster than when the information is not included. [Embodiment] 200537863 Figure 3 shows that an embodiment of the present invention is · Comparison of starting occasions: ,, ending occasions. However, the 3 pictures are only applicable to MS_Starting Fields ^ Jia does not use network paging to start conversion to dual mode. =: CS connection 212 of the picture, and access to dual An effective way of transmission mode is to use the new message instead of giving up or leaving the packet transmission mode that is not shown in Figure 214. Therefore, the MS will transmit new rlc / mac control information, such as "blocking CS request" 310 equals to block connection control Channel (PACCH), in order to initiate CS connection or reply to the paging information from the network as shown in Figure 3. MS has passed the highest] ^ + 1 attempts to send "blocking (: ^ request, message 310 on PACCH) In addition to the highest number of transmissions, ms will also transmit this request message in a decentralized manner. The decentralization factor is based on the bs_cvjviax parameter. The decentralization factor may be, for example, BS_cv_MAX + x radio block, where X is another new parameter. At M + 1 try to transmit After blocking the cs request " information 310, the MS will start a new RLC / MAC timer 350 (Tx). When the timer Tx is stopped, the dual-mode access procedure will stop and the blocking resources will be released as in the prior art. As specified by 3GPP TS44.018, the Radio Resource Control Protocol, the mobile station will transmit the "channel request" information on the RACH for random access. It is possible that the MS can use the existing MAX retransmission and T3126 (currently when transmitting M + 1 together with the "channel request" information 211 user) parameter "as specified by 3GPP TS44.018, radio resource control agreement", or new parameters may be specified. 200537863 In the MS-termination scenario shown in Figure 3, The new RLC / MAC control information transmitted through the "Blocked CS Request" (PACCH) 310 can be defined as follows: < Packet CS Request > :: = {0 < GLOBAL ^ TFI: < Global TFI ΙΕ »I KTLLI: < TLLI IE »} < CS-CHANNEL_REQUEST_DESCRIPTION: < CS Channel Request Description IE > < padding bits >; f'CS Channel Request Description IE" is designated in 3GPP TS44.018, "Radio Negative Source Control Protocol" No. 9 · 1 · 8 points . An existing network radio resource management can utilize information in reply to the MS. The information which is coated on one or more new RLC / MAC control information. For example, the "packetized CS instruction" can cover all RR information. Another way is to add new RLC / MAC information to each response of the network. The network can be configured with PS and CS resources, or without PS resources, or without CS resources. The above three alternative scenarios will be expressed separately. All three situations can occur at the MS-Initial or MS-End situations. If the network can be configured with PS and CS resources, it will send a "DTM operation instruction" message 215. When the MS receives this information, it will start the cs connection and finally enter the dual transmission mode. Notice "DTM operation instruction, The information 215 is very large, especially the size of the conditional frequency list parameter (its length is 4-132 octets), and it is possible that the size of the frequency list parameter is restricted. 200537863 However, if the network is unable to configure Ps resources, it will send, "Operate immediately" message 213. When the MS receives this information, it will unlock the ps connection and begin to reach a CS connection. In the CS designated mode, the MS can use ^ Perform technical steps to request PS resources. On the other hand, if the network cannot configure the cs resources, they will be transmitted and immediately vetoed the 5 messages. When the MS receives this information, it will continue the normal packet transmission mode. As shown in Figure 4, in order to further strengthen the MS_termination occasion, if the network can be configured with PS and CS resources (in this case, the MS does not need to transmit, packet CS request π information 310), the network will directly Send "DTM Job Order" message 215 instead of sending "blocked paging request", message 305. If neither the cs or ps resources can be set, you can send ,, immediately, 213. In the "DTM operation instruction" 215 and "Immediate operation" information 213, a new parameter is required to show that the information is transmitted due to paging. In addition, MS radio access performance information element (IE) needs to show that ms supports this feature. There are at least two possibilities for information transmission on PACCH. First, a single RLC / MAC message can be used to cover all the RR information that has been specified in it. The advantage of this possibility method is that only one RLC / MAC information definition is needed, which simplifies the present invention, and uses only one RLC / MAC information type code point. This first solution is used in conjunction with the SI information on the PACCH to specify the network-assisted cell change procedure cited in 3GPP Release 4. The information according to the first possibility may be referred to as "packaging CS instruction". The second possibility is to use individual 10 200537863 RXC / MAC information. The main points of the second option are not more significant than the first option. In both embodiments, the network needs to be instructed in the GPRS Cell Option Information Element (IE) to support this RLC / MAC information feature. As shown in Figures 3 and 4, the features of the prior art shown in Figure 2 will not be needed, and in particular, idle / packet idle 214 will not be needed. Therefore, the present invention can avoid the interruption of the PS talk 210. Refer to the flow chart in Figure 5, which shows the method of implementing the best mode of the present invention. This method provides mobile terminal conversion to dual transmission mode ^, which is used from the packetized transmission mode of the transmission sub-packaging together and using the parent-switch connection and the circuit parent-switch connection. In the step, the mobile terminal system receives a paging signal from one of the networks. If the transmission was initiated by a mobile terminal instead of the network, this step 502 is not required. In any case, the next step 504 is to network the RLC / MAC information using PACCH. In this embodiment, multiple attempts have been made to convey this information, and in this procedure, it is maintained to handle packet exchange resources instead of being discarded or left idle in the technology. After several transmission attempts, the terminal starts a timer 506 in Lucheng. When the timer expires, it is received or I, receiving double transmission mode operation information (for example, the two-way transmission mode operation means that if the second capture is received, then the 510 two-pull type can be accessed without idle packaging resources. However, if the timer expires, When the DTM ::: a order is not received, the method of returning the prior art: liberate the decapsulated resources, fetch σ, change the resource 514, and then access 516 DTM. Figure 6 shows a mobile terminal according to an embodiment of the present invention. 602, to switch to dual mode in the wireless communication system, which is a single-core towel from 2005 to 200537863, and it is used to seal the switch connection and circuit switch connection at the same time. This mobile terminal includes a transceiver 6〇 4. It is used to transmit a paging signal 606 to the processing unit το to show that the network needs the mobile terminal to switch to dual mode. The mobile terminal 602 also includes a processing unit 61, which can respond to the paging signal 606 to provide RLC / MAC through PACCH. Message 622. In all cases, the 'packet exchange (ps) resource 649 is a non-interrupter. When the processing unit 610 responds to the signal 622, it receives a dtm operation instruction 612 for the use of a circuit switched connection 618 connection. Packet-switched connection 649. The processing unit π 610 includes a timer, the timer is turned off if
時未接收到DTM作業指令612，則處理單元將回復先行 技術之方法以達成雙模式，包括解放ps資源。 、4知所有圖式及對最佳模式實施例所作之說明不擬 作為本务月之方法，終端機及系統之限制。精於此藝者 當知本項應用之步驟騎縣絲_般之因果關係但不 包括^類型之過程中間關係，而在此應用中所述之各 種^及結構可用不同組合之硬體及軟體利用不同結構 及序列予以實施，在此不予贅述。 12 200537863 【圖式簡單說明】 第1圖顯示在先行技術下行動终端機如何轉換成雙 傳輸模式。 /第2圖顯不本發明之從分封模式轉換成雙模式之情 第3圖顯示在本發明之MS_終結場合，利用在八 CS請求中之新RLC/MAC信息從分封 =When no DTM operation instruction 612 is received, the processing unit will reply to the prior art method to achieve a dual mode, including liberating ps resources. Note that all the drawings and the description of the best mode embodiment are not intended to be used as the method of this month, the limitations of the terminal and the system. The artist who is proficient in this application should know the steps of this application, such as the causal relationship, but does not include the intermediate relationship between the types of processes, and the various types and structures described in this application can use different combinations of hardware and software. It is implemented using different structures and sequences, which will not be repeated here. 12 200537863 [Schematic description] Figure 1 shows how the mobile terminal can be converted into dual transmission mode under the prior art. / Figure 2 shows the present invention's transition from the deblocking mode to the dual mode. Figure 3 shows the MS_termination occasion of the invention, using the new RLC / MAC information in the eight CS request from the deblocking =
傳輸模式之情形。 成雙 第4圖係在本發明之另一 MS_終結場合， 輸模式轉換成雙傳輸模式之情形。 刀于傳 第5圖係本發明之一實施例之方法之流程圖 第6圖係本發明之行動終端機之區塊圖。 【主要元件符號說明】 分封閒置模式 指定RR連接 基台系統 分封節 es連接 分封閒置模式 Ps模式 分封CS請求 仃動终端機 傳呼信號 102雙傳輸模式 104 106分封傳輸連接 1〇8 202行動台 204 206伺服GPRS支援節點 208行動交換中心 210 211頻道請求信息 212 213立即作業信息 214 215 DTM作業指令信息216 305分封傳呼請求信息310 350 RLC/MAC 計時器 602 604收發器 606 13 200537863 DTM作業指令 RLC/MAC 信息 610 處理單元 612 618 電路交換連接 622 649分封交換資源The case of transmission mode. Double Figure 4 shows the case where the transmission mode is switched to the dual transmission mode in another MS_termination occasion of the present invention. Figure 5 is a flowchart of a method of an embodiment of the present invention. Figure 6 is a block diagram of a mobile terminal of the present invention. [Description of main component symbols] Blocking idle mode designation RR connection base station system Branching connection es connection Branching idle mode Ps mode Branching CS request automatic terminal paging signal 102 Dual transmission mode 104 106 Blocking transmission connection 108 Mobile station 204 206 Servo GPRS support node 208 Mobile switching center 210 211 Channel request information 212 213 Immediate operation information 214 215 DTM operation instruction information 216 305 Blocked paging request information 310 350 RLC / MAC timer 602 604 Transceiver 606 13 200537863 DTM operation instruction RLC / MAC Information 610 Processing Unit 612 618 Circuit Switched Connection 622 649 Packet Switched Resources
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